Page 306 - Intelligent Digital Oil And Gas Fields

254 Intelligent Digital Oil and Gas Fields

• electric hydraulics
• mechanical override facility
ICV size:
• completion casing size for 6–1/2in., 5–1/2in., 4–1/2in., and 3–1/2in.
• hydraulic-spring return
• electric hydraulics
• mechanical override facility

7.3 SURFACE DATA ACQUISITION AND CONTROL

The down-hole equipment integrated by cables, connectors, gauges,
and terminators are connected through the tubing to the control panel at the
well surface. Fig. 7.5 shows the main configuration to acquire data and con-
trol ICV position for supervisory control and data acquisition (SCADA).
The control panel receives pressure and temperature data in real time for
the well segments completed with ICVs. Inside the control panel, the
RTU sends the pressure and temperature signal to a SCADA system. Pro-
duction engineers utilize a flow rate-based model and infer which segment is
flowing, water, oil, or gas. Engineers decide which valve needs to be grad-
ually controlled and send back a signal to the control panel to change the
down-hole choke size.

Fig. 7.5 Surface data acquisition and control using smart wells with ICV control.